[feature request/question] rename file, based on folder name (upward) on level 1/2/..

[ghost]

is there a way for me to rename files,
based on their (various) parent-folder's names?

reasoning..

Google's Material Design Icons (SVG) project,
has a nasty file-naming convention.

src
└───action
    └───3d_rotation
        ├───materialicons
        │       24px.svg
        │
        ├───materialiconsoutlined
        │       24px.svg
        │
        ├───materialiconsround
        │       24px.svg
        │
        ├───materialiconssharp
        │       24px.svg
        │
        └───materialiconstwotone
                24px.svg

basically all the information is carried in the first/second/third parent-folder,
while the files have no useful information.

(this is mostly so I would be able to flatten the folder structure a bit,
but also so file-searches would yield meaningful results).